Question # 1

Proteins have linkage between amino acids

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imide

amide

ester

ether

Helical structure of proteins is stabilized by

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Peptide bond

Dipeptide bond

Van der Wall's forces

Hydrogen bonding

Fe+2 is the co-factor for

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Chrome oxidase

Glucose-6-phosphatase

Carbonic anhydrase

Hydrolase

An example of bydrolase is

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Amylase

Lipase

Fumarase

A,C

Simplest Structure of a protein that has only covalent bonding between amino acids is

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2° structure

3°structure

1° structure

4° structure

Increased concentration of enzyme alkaline phosphatase is a sign of

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hemophilia

heart disease

thrombosis

rickets

Proteins loose their ability to work

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by slight heating

by change in structure

by slight cooling

when inside the body

Lactoglobulin is found in

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nucleus

nerve cells

Plants only

muscles and in plants

The specifie substance (metabolite) that fits on the enzyme surface and is converted to products is called

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Co-factor

Isoenzyme

Prosthetic group

Substrate

The protein component of enzyme ls called

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apoenzyme

proenzyme

holoenyme

co-enzyme

Collagen is a fibrous protein present most abundantly in

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heart

nucleus

connective tissues

Arteries

All are examples of different classes of enzymes except

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Hydrolases

Isomerases

Oxido-reductases

Mutases

The proteins which give an amino acid and non-protein group on hydrolysis are known as

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Derived protein

Albumins

Conjugated simple protein

Conjugated protein

Amino acids react together to form the primary structure of proteins which is accompanied by

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addition of water

addition of ammonia

removal of ammonia

removal of water

Which of the following is not a property of enzymes?

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extraordinary speciffcity

reversibility of reactions

high efficiency

minimum activity at optimum T

Phosphoprotein comes under the type of proteins

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Simple protein

Derived protein

Conjugated

Both A & B

An example of regulatory protein is

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nucleoprotein

hemoglobin

lactoglobulin

thyroxine

For a particular halogen, the reactivity of alkyl halides

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remains same with C-increase

decreases with C-increase

increases with C-increase

decreases with C-decrease

Which of the following is not a category of proteins based upon their function?

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genetic

Regulatory

nucleo

structural

Prosthetic groups are

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helical structures in protein

sulphur containing parts of protein

non-protein parts in compound proteins

sites for hydrogen bonding

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